Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 946 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.⚡ Which of these jumps to a charged comb? (a) a steel spoon (b) thermocol bits (c) a brick (d) a pebble
2. 2.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the paper bit size is the one thing we change. (a) False (b) True
3. 3.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) vinegar (d) tiny paper bits
5. 5.⚡ Which of these does not move to a charged comb? (a) dry hair (b) a steel spoon (c) a thin water stream (d) tiny paper bits
6. 6.⚡ You comb dry hair and hold the comb near tiny paper bits. What happens? (a) nothing happens (b) they turn wet (c) they turn blue (d) the bits jump to it
7. 7.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a plastic comb (c) a balloon (d) a magnet
8. 8.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) the same comb (c) number of rubs
10. 10.🔮 Predict: you wet the comb before trying again. What happens? (a) it lights up (b) it becomes a magnet (c) it works better (d) it hardly works
11. 11.🧺 Do we need vinegar for the static comb? (a) not needed (b) needed
12. 12.True or false: tiny paper bits is not needed for the static comb. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a pebble (b) thermocol bits (c) a steel spoon (d) a brick
14. 14.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) vinegar (c) a plastic comb (d) a balloon
15. 15.True or false: a plastic comb is needed for the static comb. (a) True (b) False
16. 16.True or false: a magnet is needed for the static comb. (a) True (b) False
17. 17.⚡ Which of these does not move to a charged comb? (a) a heavy book (b) dry hair (c) tiny paper bits (d) a thin water stream
18. 18.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: the same comb is what we measure. (a) False (b) True
19. 19.🔮 Predict: you rub a balloon on dry hair and hold it on a wall. What happens? (a) it sticks for a while (b) it turns into water (c) it falls straight down (d) it bursts at once
20. 20.🔍 Which is the odd one out? (a) a heavy book (b) dry hair (c) a thin water stream (d) puffed rice
21. 21.⚡ Why does the rubbed comb pull the paper bits? (a) it is hot (b) it is a magnet (c) it has static charge (d) it is sticky
22. 22.True or false: a brick does not move to a charged comb. (a) False (b) True
23. 23.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) the paper bit size (b) number of rubs (c) the same hair (d) the same comb
24. 24.🛟 There is lightning outside. Where is it safest to be? (a) under a tall tree (b) on a rooftop (c) in an open field (d) indoors
25. 25.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
26. 26.⚡ Which of these does not move to a charged comb? (a) thermocol bits (b) tiny paper bits (c) a thin water stream (d) a pebble
27. 27.⚡ A rubbed comb is held near puffed rice. What happens? (a) jumps to the comb (b) does not move
28. 28.🧺 Do we need a battery cell for the static comb? (a) not needed (b) needed
29. 29.🧺 Which of these is not needed for the static comb? (a) dry hair (b) tiny paper bits (c) a magnet (d) a balloon
30. 30.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) yeast (d) dry hair
31. 31.🔍 Which is the odd one out? (a) a heavy book (b) a thin water stream (c) a steel spoon (d) a brick
32. 32.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: number of rubs is the one thing we change. (a) True (b) False
33. 33.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the static comb? (a) a magnet (b) a mirror (c) dry hair (d) vinegar
35. 35.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) number of rubs (b) paper bits picked up (c) the paper bit size
36. 36.🛟 Static from a comb is safe. Which electricity must children never play with? (a) plug points at home (b) paper bits on a comb (c) a rubbed balloon (d) a rubbed plastic comb
37. 37.⚡ Which of these jumps to a charged comb? (a) a pebble (b) a heavy book (c) a brick (d) a thin water stream
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🔍 Which is the odd one out? (a) a thin water stream (b) puffed rice (c) dry hair (d) a brick
40. 40.⚡ Why does the comb trick work best on a dry day? (a) wet hair is magnetic (b) damp air leaks charge (c) water adds charge (d) dry days are noisy

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